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Contract OI history

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Jan 19, 2029 EXPIRATION

GERN $500.00 Call

GERN290119C00000500

Latest saved OI111Oct 23, 2026
Last change+55vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
GERN $500.00 call open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 111550 2026-10-08: 56 OI2026-10-09: 56 OI2026-10-13: 56 OI2026-10-14: 56 OI2026-10-16: 56 OI2026-10-20: 56 OI2026-10-23: 111 OI Oct 08, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

GERN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing111+55
Oct 20, 2026560
Oct 16, 2026560
Oct 14, 2026560
Oct 13, 2026560
Oct 09, 2026560
Oct 08, 202656No prior observation